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A liquid of unknown specific heat at temperature 20c was mixed with water at 80c in a container.final temperature was 50c and total mass was 100g. the second experiment at the same temperature was 20g less of the liguid and was poured into water, the equilbrium temperature was 52c. What is the specific heat?
An airplane flying horizontally 3600 ft above the ground at 120mi/hh, drops relief aid on the ground. Resolve the angle between the vertical and the line joining plane and target at the instant when he package is released.
A cannonball sits on top of a 10 meter cliff and is fired at a 10 degree angle with an initial velocity of 50 m/s. What is the maximum height of the cannonball relative to the ground? At maximum height what is the magnitude of the velocity? How lo..
A mirror produces an image that is located 48.00 cm behind the mirror when the object is located24.00 cm in front of the mirror. What is the focal length of the mirror?
The summit of a mountain 2450 m above a baseball camp is measured on a map to be 4 m horizontally from the base camp in a direction 32.4 west of the north. Illustrate what are the components of the displacement vector from the camp to the summit
Three 1kg masses are at the vertices of an equilateral triangle of sides 10 cm. determine the location of the center of mass (x,y)
A 65 diver stands at the end of a 27 springboard. What is the magnitude of the vertical force exerted by the hinge on the board
What is the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields
An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 5.55 106 N/m, What was the speed of the car before impact
Suppose a tank contains 680 m3 of neon (Ne) at an absolute pressure of 1.01 x 10^5 Pa. What is the increase in the internal energy of the neon
A turtle ambles leisurely-as turtles tend to do-when it moves from a location with position vector r1,x = 1.01 m and r1,y = -2.99 m in a lettuce garden to another location, What are the components and the magnitude of the turtle\'s average velocity
An audio amplifier provides an alternating rms potential difference of 15.0V. A loudspeaker connected to the amplifier has a resistance of 10.4 ohm. what is the rms current in the speaker
What net torque must be applied to the wheel. How several meters would the molecule.
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